I've never seen them in an amp where the 3525 drove the gate resistors without any buffer/driver transistors. They are used to allow the active snubber (two series diodes) to pull up against the drive of the 3525. You know that they were relatively low in value if they burned badly with only 12v applied.
There’s only two transistor in the circuit and I’m not seeing any direct or even low resistance correlation between they and the drive out from the 3525. In fact the output trace is just as I illustrate it, it just goes to the network of resistors that drive two mosfet transistors each making four for the power supply.
I will try 22ohms or probably 33ohms and see how it goes.
I will try 22ohms or probably 33ohms and see how it goes.
Attachments
Although many amps use driver transistors as a buffer between the 3525 and the FET gate resistors, they are not really needed unless you're driving a lot of FETs.
Looking back at some old Kicker diagrams, I found a similar circuit using 33 ohm resistors in those locations. See attached.
Looking back at some old Kicker diagrams, I found a similar circuit using 33 ohm resistors in those locations. See attached.